A new http://btmusic.eu domain is being introduced as a backup. If you log in to http://btmusic.eu , you may still find some parts of the site inaccessible due to redirection to btmusic.org. These problems are being ironed out.
All newly issued .torrent files support both domains and should work immediately.
I apologise for the inconvenience. This hit at a weekend so the problem with the .org domain remains unresolved at this time.